(villages of Jair), certain villages on the east of Jordan, in Gilead or Bashan, which were taken by Jair the son of Manasseh, and called after his name (Numbers 32:41; Deuteronomy 3:14). In the records of Manasseh in Joshua 13:30 and 1 Chronicles 2:23 the Havoth-jair are reckoned with other districts as making up sixty “cities.” (comp. 1 Kings 4:13). There is apparently some confusion in these different statements as to what the sixty cities really consisted of. No less doubtful is the number of the Havoth-Jair. In 1 Chronicles 2:22 they are specified as twenty-three, but in Judges 10:4 as thirty.
Smith's Bible Names Dictionary (1866)